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DOI :10.17096/jiufd.97059   IUP :10.17096/jiufd.97059    Full Text (PDF)

CURING EFFICIENCY OF DUAL-CURE RESIN CEMENT UNDER ZIRCONIA WITH TWO DIFFERENT LIGHT CURING UNITS

Pınar Gültekin, Elif Pak Tunç, Değer Öngül, Volkan Turp, Özgür Bultan, Burçin Karataşlı

Purpose: Adequate polymerization is a crucial factor in obtaining optimal physical properties and a satisfying clinical performance from composite resin materials. The aim of this study was to evaluate the polymerization efficiency of dual-cure resin cement cured with two different light curing units under zirconia structures having differing thicknesses. Materials and Methods: 4 zirconia discs framework in 4 mm diameter and in 0.5 mm, 1 mm and 1.5 mm thickness were prepared using computer-aided design system. One of the 0.5 mm-thick substructures was left as mono-layered whereas others were layered with feldspathic porcelain of same thickness and ceramic samples with 4 different thicknesses (0.5, 1, 1.5 and 2.0 mm) were prepared. For each group (n=12) resin cement was light cured in polytetrafluoroethylene molds using Light Emitting Diode (LED) or Quartz-Tungsten Halogen (QHT) light curing units under each of 4 zirconia based discs (n=96). The values of depth of cure (in mm) and the Vickers Hardness Number values (VHN) were evaluated for each specimen. Results: The use of LED curing unit produced a greater depth of cure compared to QTH under ceramic discs with 0.5 and 1 mm thickness (p<0.05).At 100μm and 300 μm depth, the LED unit produced significantly greater VHN values compared to the QTH unit (p<0.05). At 500 μm depth, the difference between the VHN values of LED and QTH groups were not statistically significant. Conclusion: Light curing may not result in adequate resin cement polymerization under thick zirconia structures. LED light sources should be preferred over QTH for curing dual-cure resin cements, especially for those under thicker zirconia restorations.

Keywords: Polymerization, translucency, resin cement, hardness, zirconia
DOI :10.17096/jiufd.97059   IUP :10.17096/jiufd.97059    Full Text (PDF)

Dual-Cure Reçine Simanın Zirkonya Seramikleri Altındaki Polimerizasyon Etkinliğinin İki Farklı Işık Kaynağı ile İncelenmesi

Pınar Gültekin, Elif Pak Tunç, Değer Öngül, Volkan Turp, Özgür Bultan, Burçin Karataşlı

Amaç: Kompozit reçine esaslı malzemelerin ideal fiziksel özelliklerinin ve klinik performanslarının elde edilmesi; yeterli polimerizasyonun sağlanmasına bağlıdır. Bu çalışmanın amacı, farklı kalınlıklardaki zirkonya esaslı restorasyonların altında kullanılan dual-cure reçine simanın polimerizasyon etkinliğinin iki farklı ışık kaynağı ile değerlendirilmesidir. Gereç ve Yöntem: 4 mm çapında disk şeklinde 4 adet zirkon alt yapı (2 adet 0.5 mm, 1 adet 1mm, 1 adet 1.5 mm kalınlığında) bilgisayar destekli tasarım sistemi kullanılarak hazırlandı. 0.5 mm lik disklerden biri alt yapı olarak bırakılırken diğer 3 diske aynı kalınlıkta üst yapı porseleni uygulanarak 4 farklı kalınlığa (0.5, 1, 1.5 ve 2.0 mm) sahip seramik örnek elde edildi. Politetrafloroetilen kalıp içine konulan reçine siman 4 farklı seramik disk üzerinde her bir grupta 12 adet örnek olacak şekilde Light Emitting Diode (LED) ya da Quartz-Tungsten Halogen (QTH) ışık kaynakları kullanılarak polimerize edildi (n=96). Polimerizasyon derinliği (mm) ve Vickers sertlik değerleri (VHN) her bir örnek için tespit edildi. Verilerin istatistiksel olarak analizinde tek yönlü varyans analizi, Tukey HSD ve Student t testi kullanıldı (p<0.05). Bulgular: LED ışık kaynağının kullanımı ile 0.5 ve 1 mm.lik örnek gruplarında QTH’a oranla daha yüksek polimerizasyon derinliği sağlamıştır (p<0.05). 100 μm ve 300 μm derinlikte LED ışık kaynağı QTH’a oranla istatistiksel olarak anlamlı derecede yüksek VHN değerleri göstermiştir (p<0.05). Simanda 500 μm derinlikte, iki ışık kaynağının polimerizasyon etkinliği arasında Vickers sertliği açısından anlamlı bir fark bulunmamıştır. Sonuç: Zirkon esaslı restorasyonların kalınlığı arttıkça reçine simanın polimerizasyonu yetersiz kalabilir. Özellikle kalın zirkon esaslı restorasyonların altında bulunan dual-cure reçine simanlarının ideal olarak polymerize edilebilmesi için LED ışık kaynağı QTH ışık kaynağına tercih edilmelidir.

Keywords: Polimerizasyon, translusentlik, reçine siman, sertlik, zirkon

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APA

Gültekin, P., Pak Tunç, E., Öngül, D., Turp, V., Bultan, Ö., & Karataşlı, B. (2015). CURING EFFICIENCY OF DUAL-CURE RESIN CEMENT UNDER ZIRCONIA WITH TWO DIFFERENT LIGHT CURING UNITS. European Oral Research, 49(2), 8-16. https://doi.org/10.17096/jiufd.97059


AMA

Gültekin P, Pak Tunç E, Öngül D, Turp V, Bultan Ö, Karataşlı B. CURING EFFICIENCY OF DUAL-CURE RESIN CEMENT UNDER ZIRCONIA WITH TWO DIFFERENT LIGHT CURING UNITS. European Oral Research. 2015;49(2):8-16. https://doi.org/10.17096/jiufd.97059


ABNT

Gültekin, P.; Pak Tunç, E.; Öngül, D.; Turp, V.; Bultan, Ö.; Karataşlı, B. CURING EFFICIENCY OF DUAL-CURE RESIN CEMENT UNDER ZIRCONIA WITH TWO DIFFERENT LIGHT CURING UNITS. European Oral Research, [Publisher Location], v. 49, n. 2, p. 8-16, 2015.


Chicago: Author-Date Style

Gültekin, Pınar, and Elif Pak Tunç and Değer Öngül and Volkan Turp and Özgür Bultan and Burçin Karataşlı. 2015. “CURING EFFICIENCY OF DUAL-CURE RESIN CEMENT UNDER ZIRCONIA WITH TWO DIFFERENT LIGHT CURING UNITS.” European Oral Research 49, no. 2: 8-16. https://doi.org/10.17096/jiufd.97059


Chicago: Humanities Style

Gültekin, Pınar, and Elif Pak Tunç and Değer Öngül and Volkan Turp and Özgür Bultan and Burçin Karataşlı. “CURING EFFICIENCY OF DUAL-CURE RESIN CEMENT UNDER ZIRCONIA WITH TWO DIFFERENT LIGHT CURING UNITS.” European Oral Research 49, no. 2 (May. 2025): 8-16. https://doi.org/10.17096/jiufd.97059


Harvard: Australian Style

Gültekin, P & Pak Tunç, E & Öngül, D & Turp, V & Bultan, Ö & Karataşlı, B 2015, 'CURING EFFICIENCY OF DUAL-CURE RESIN CEMENT UNDER ZIRCONIA WITH TWO DIFFERENT LIGHT CURING UNITS', European Oral Research, vol. 49, no. 2, pp. 8-16, viewed 22 May. 2025, https://doi.org/10.17096/jiufd.97059


Harvard: Author-Date Style

Gültekin, P. and Pak Tunç, E. and Öngül, D. and Turp, V. and Bultan, Ö. and Karataşlı, B. (2015) ‘CURING EFFICIENCY OF DUAL-CURE RESIN CEMENT UNDER ZIRCONIA WITH TWO DIFFERENT LIGHT CURING UNITS’, European Oral Research, 49(2), pp. 8-16. https://doi.org/10.17096/jiufd.97059 (22 May. 2025).


MLA

Gültekin, Pınar, and Elif Pak Tunç and Değer Öngül and Volkan Turp and Özgür Bultan and Burçin Karataşlı. “CURING EFFICIENCY OF DUAL-CURE RESIN CEMENT UNDER ZIRCONIA WITH TWO DIFFERENT LIGHT CURING UNITS.” European Oral Research, vol. 49, no. 2, 2015, pp. 8-16. [Database Container], https://doi.org/10.17096/jiufd.97059


Vancouver

Gültekin P, Pak Tunç E, Öngül D, Turp V, Bultan Ö, Karataşlı B. CURING EFFICIENCY OF DUAL-CURE RESIN CEMENT UNDER ZIRCONIA WITH TWO DIFFERENT LIGHT CURING UNITS. European Oral Research [Internet]. 22 May. 2025 [cited 22 May. 2025];49(2):8-16. Available from: https://doi.org/10.17096/jiufd.97059 doi: 10.17096/jiufd.97059


ISNAD

Gültekin, Pınar - Pak Tunç, Elif - Öngül, Değer - Turp, Volkan - Bultan, Özgür - Karataşlı, Burçin. “CURING EFFICIENCY OF DUAL-CURE RESIN CEMENT UNDER ZIRCONIA WITH TWO DIFFERENT LIGHT CURING UNITS”. European Oral Research 49/2 (May. 2025): 8-16. https://doi.org/10.17096/jiufd.97059



TIMELINE


Submitted23.10.2014
Accepted09.02.2015
Published Online01.04.2015

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